Machine for threading sheet-metal rings



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(No Model.)

W. WERTS.

MACHINE EOE TEEEADING SHEET METAL EINES. No. 396,789.

Patented Ja.11.29, 1889.

(No Model.) 6 Sheets-Sheet 4.

W. WERTS.

MAGHINB POR THREADING SHEET METAL RINGS, No. 396,789. A Patented Jan. 29, 1889 @WMM/@00%, J1/wanton C* Wllala Wfervs @gud @Houma/140]' MACHINE EOE TEEEAEING SHEET METAL RINGS. No. 396,789.

Patented Jan. 29; 1889.

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(No Model.)

W. WERTS.

MAGEINEEOE TEEEAEING SHEET METAL EINES. No. 396,789.

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(Dl/@Mmes N. PETERS. Pham-Limonyner. washingmn, u. c,

' lluirnn Srnrns Partnr @triest lllililAM lVERTS, OF CAMDEN, NET JERSEY.

MACHINE FOR THREADING SHEET-METAL RINGS.

SPECIFICATION forming part oi' Letters Eatent No. 396,789, dated January 29, 1889.

Application filed September 25,

,To @ZZ whom if 71mg/ colma/'n.-

Be it known that IAN/'imitan Wmrrs, a eiti- Zen of the Unit-ed States, residing at Camden, in the county of Camden and State of New Jersey, have invented a new and useful Improvement in Machines for rihreading Sheet- )fletal Rings, of which the following is a speciiication.

hly'inveutionV relates to an improvement in machines fo r thread ing sheet-metal rings; and it consists in the peculiar construction and combination of devices that will be more fully set forthhereinafter, and particularly pointed out in the claims.

This invention is an improvement on the machine for which Letters Patent` of the United States No. 291,656 were granted to me January 8, 188i, and the object of my present improvement is to simplify the construction of the machine, and thereby enable the same to be more readily operated and to be mannfactured at a reduced cost. I

In the accompanying drawings, Fign re 1 is a plan view of my improved machine. Fig. 2l is a side elevation of the same. Fig. 3 is a vertical transverse sectional view `taken on the line it* of Fig. 1. Fig. 4 is a similar view taken on the line y' 1,1 of Fig. 1, and looking inthe direction indicated by the arrow 1 in said gure. Fig. 5 is a similar view taken on the line .e ,a of Fig. 1, and looking in the direction indicated by the arrow 2. Fig. G is a detail transverse sectional view taken on the line a d of Fig. 1. Fig. 7 is a transverse sectional view taken on the line l) l) of Fig. 1. Fig. 8 is a detail plan view of one of the face plates, a hopper, and the endless carrier to lfeed the blanks. Fig. 9 is a detail perspective view of one of the threaded chucks. Fig. 10 is a similar view of a sheet-metal blank. Fig. 11 is a similar view of a finished cap. Fig. 12 is a longitudinal sectional view illustrating a portion of the face-plate, the hopper thereon, the plungers in the hopper, and one of the chucks and the stripper therein. Fig. 13 is a detail perspective view of one of the buckets of one of the endless carriers. Fig. 11i ris a view of the parts shown in Fig. 12, rand representing the same in another position. Fig. 15 is a side elevation of one of the camarches.

A represents the main shaft, which is jour- 1888. Serial No. 286,363. (Nomodel.)

naled in standards B. To one end of this shaft is secured a gear-wheel, (`,which meshes with a similar gear-wheel on a countenshaft, (not showin) `and rotates the shaft A in the direction indicated by the arrow Near one end of the shaft A is a gear-wheel, D, which is loosely mounted on the said shaft and is adapted to rotate independent-ly thereof. 6o

.lonrnaled in, one of the standards Bis a shaft, E, which has a cone-pulley, F, on its outer end, and is provided at its inner end. with a pinion, G, which engages the wheel D. The said cone-pulley is driven. by an endless belt 4from a suitable countershaft. (Not shown.)

1l represents a pair of circular face-plates of suitable size, which are rigidly secured to the shaft A, and are arranged at a suitable 7o distance apart. Y

I represents a pair of disks of the same diameter as the face-plates, arranged at suitable distances from the inner sides of the faceplates, and likewise secured rigidly t0 the 7 5 shaft A.

K represents an arm, which is rigidly secured to the shaft A near one end thereof. In the said arm and in the proximate disks H I is journaled a shaft, L, which has a pin-V 8o ion, M, at one end that engages the wheel D, and is provided at its opposite end with a pinion, N.

A pair of gear-wheels, O P, of different diameters are rigidly secured together and loosely 8 5 mounted on the center of shaft A, and the smaller of these wheels engages the pinion N.

In each pair of disks H l are jiournaled a series of shafts, R, which are arranged concentrically with the shaft A. Any suitable 9o number of these shafts R may be employed, according to the size and the desired capacity ofthe machine; butI here illustrate only three of the said shafts in each pair of disks.,

Rigidly secured to the shafts R .are pinions S, which engage the wheel P. The outer ends of the shafts R project from the disks H and are provided each with a right-hand threaded chuck, T, and with a pinion., U. Said shafts R are further provided with longitudiroo nal bores or sockets, in which are fitted rods V. Springs XV are inserted in the inner ends of `said vbores or sockets and bear outwardly against the inner ends of the said rods 2' scarse To the outer end of the rods V are secured strippers or disks X, which are circular in form and are iitted in countersunk recesses in the outer ends of the chucks T.

Journaled in the disks H l at a suitable distance from the shafts R are shafts Y, which are each provided with a pinion, Z, that engages the proximate pinion U. Shafts A' are also journaled in the said disks at a suitable distance from the shafts Y, and are provided with pinions B', which engage the pinions Z. Each disk H is provided with a series of seg mental slots, C', which are concentric with the shafts A.

D' represents a series of lever-arms which have their inner ends forked or bifurcated, and are fulcrumed at a suitable distance from their ends on the shafts A. Journaled in the said lever-arms are shafts E', which extend through and are adapted to work in the slots C'. To the outer end of each shaft E' is secured a left-hand threaded chuck, F', and a pinion, G'. T he pinions G engage the pinions B' at all times, and by swinging' theleverarms D, which carry the shafts E' the chucks F maybe caused to .en gage the chucks T or to move from the same, as will be readily understood. By thus adapting the shafts E,which carry the chucks F', to move concentrically with the shafts A', and by providing the gear.- ing which connects the shaft E' to the shaft A and the latter to the shaft R, I am enabled to dispense with the complicated and costly universal joints and eccentric gears described in my before-mentioned Letters Patent, and thereby effect a very material economy in the construction of the machine and greatly simplify the working' parts.

Springs Il are secured to pegs or pins I', that project from the inner sides of the disks H, and t-he free ends of the said springs are secured to the inner ends of the lever-arms D' and serve to normally turn the latter on the shafts A' in such a position as to normally withdraw the chucks F' from the chucks T, and hence adapt the sheet-metal blanks to be fed to or removed from the latter.

K represents a pair of ringsVV of suitable diameter, which are arranged concentrically with the shaft A and in line with the projccting outer ends of lcverarms D. The said rings K have f supports or standards L at their lower sides, and are each provided on their inner sides with a cam, M. The said cams are arranged within the paths of the lever-arms D', so that when the machine is in motion and the disks H I and shaft A in rotation in the direction indicated by the arrow in Fig. 3 the outer ends of the lever-arms D Iare caused to engage the cams, and thereby the said levers close the chucks F' against the chucks T, so that the threads thereof intermesh during a portion of each revolution of the disks.

It will be understood from the description of` the gearings which connect the chuckshafts together and to the shafts L that the said chucks are also in constant rotation in opposite direction, so that when thechucks are closed together their threads are caused te impinge on the blanks and form threads therein, as fully set forth in my before-mentioned Letters Patent.

It will be understood that the rings K' are stationary and are rigidly secured to the t-able or floor or other object on which the machine is mounted.

L2 represents a pair of circular plates, which are rigidly secured to the shaft A, and-are arranged at suitable distances from the out-er sides of the disks H. The outer ends of the pairs of chucks T F' are almost in contact with the plates L2, and the latter have circular openings M2, which are directly opposite the chucks T, and through which the blanks are pushed upon the latter. Hoppers N are secured to the outersides of the plates L2 and in line with the openings M2, and said hoppers are .provided with plungers O P', the former being of tubular form and the latter having' longitudinal movement therein.

Arches R' are arrangedconcen trically with the shaft A and at suitable distances from the outer sides of the plates L, and are providedy each with a cam, S', for giving a forward movement to the plungers P'- in order to hold the blanks while the plungers O are withdrawn previously to the threading of the blanks. The plungers O are withdrawn by means of the springs T', which surround ythem between the hoppers and the collars U: As

the rear ends of the plungers P slide over.

the receding cams V' on the arches Y', they are withdrawn by means of the springsV W' between the heads on their rear ends and the collarsvU as the ends of the plungersO" slide against the receding cams S'. The strippers X, previously described, discharge the threaded-caps as the plungers O' are withdrawn, the said strippers being forced forward by means of the springs YV.

Arranged at a suitable distance beyond the arches R are arches Y', which are provided with cams for, giving a forward movement tov the plungers P' in order to push the blanks from the hoppers upon the chucks T in position to be threaded.

Z represents endless chains, which pass over sprocket-wheel A2 on the shaft B2and over a shaft provided with a pulley, which shaft and pulley are not seen inthe drawings. The chains are provided with buckets C2 for conveying blanks to the hoppers onl the plates L2. ets have slots f, through which the fingers g of the hoppers pass and draw the blanks from` the buckets into the hoppers, the mechanism being so timed that one of the buckets on the endless chain reaches one of the hoppers onf the plate L2 just before the lever-arms D' become engaged by the cams M' ofl rings K. Y

The operation of the machine is as follows:

The centrall shaft, A, which carries the plates L2 and the disks H I and connecting devices,

The lower sides of the said buck- IOO IIO

'being revolved, as described, the blanks placed in the buckets of the endless chains Z are brought in succession to the hoppers N', and from the latter are forced by the plungers O onto the chucks T, and at the same time the cams on the arches Y force the plungers P forward, which hold the blanks in position while the plunger Ois withdrawn out of the way, and the chucks being closed upon the blanks and revolving in opposite directions, as before described, serve to crimp the bla-n ks between them and form threads on the same, and convert the blanks into caps such as are employed for securing the covers on preserving-jars.- The chucks F are withdrawn from the threaded caps by the springs Il as soon as the lever-arms D pass the cams M, and said caps are discharg'ed from the chucks T by means of the strippers X, the springs W' serving to push the strippers forward and the springs l' I of the plungers P yielding as the ends of the plunger-rods P pass along the receding portions of the cams V. The caps are thus held between the strippers X and the plungers P in their outward movement, and are thereby caused to pass gently from the chucks T into the hoppers N.

As the said caps, having been pushed back into the hoppers N', drop from the said threaded hoppors in succession, they fall into buckets l')'-, similar to those previously dcscribed, and are mounted on endless chains PP, which are driven by a suitable count-en shaft (not shown) and passed over sprocket wheels F2. The said endless carriers Er2 serve to deliver the caps :from the threading-machine.

By reference to Figs. l and i3 it will be understood that my present improved threadingmachine is double ended-thatis to say, it has two sets of the revolving disks, plates, pairs of chucks, mechanism for operating them, and plungers, and cam arches thereby very greatl y increasing the capacity of the machine.

Having thus described my invent ion, I claiml. In a threading-machine, the combination of the revolving disks H I, the threaded chucks T, journaled therein, the lever-arms pivoted to the disks, the threaded chucks F j ournaled in the lever-arms and adapted to close ag'ainst the chucks T, the cams to operate the leverarms, and means for positively rotating the chucks T, substantially as described.

2. In a threading-machine, the combination of the revolving disks II I, the threaded chucks T, journaled therein and having the gears U, the leverarms pivoted to the disks, the threaded chucks F, journaled in the leverarms and having the gears G the gears Z, engaging gears U, the gears I3', engaging gears Z and G', and cams for moving the lever-arms, substantially as described.

i). The combintuion of the revolving shaft llaving the disks ll I, the threaded chucks T, journaled in the disks and having the pinions t5, the threaded chucks F, mounted so as to move relatively to chucks T, and the gear P, loose on the shaft and engaging said pinions S, and means,substantially as set forth, to rotate the gear P.

41. The combination of the revolving shaft havingthe disks, two sets of chucks supported bythe disks, one set of chucks being movable relatively to the other set, the gears S, the gears O l?, loose on the shaft and secured together, said gear P engaging the gears S, the gear D, loose on the shaft, the driving-shaft having the gear G, engaging gearD, the shaft Il, journaled in the disks and having the gear M, en gaging gear D, and the gearN, engaging gear O, substantially as described.

5. In a threading-machiiie, the combination of the revolving sl'xaft having the disks H I, the gear P, loose on said shaft, the shafts R, j ou rnaled in the disks and having the chucks T, the gears U and gears S, the latter engaging the gear P, the shafts S,T,joii1'11alecln the disks and havin the gears Z, engaging gear U, the shafts A, journaled in the disks and having the gears B, engaging ge( rs Z, the le- Venarms fulcrumed on the shafts A the cams to operate said arms, the shafts E, journaled in the lever-arms and having the chucks F and gears G', the latter being at all times in engagement with the gears B, and mechanism, substantially as described, to rctate the gear P. l

In testimony that I claim the foregoing' as my own I have hereto affixed my signature in presence of two witnesses.

VILLIAM YFRTS. lVitncsses:

J. H. Steenns, R. J. MAnsHALL.

IOO 

